Information about Geology 8T Quiz 10

Quiz 10 is about streams – read about the key concepts on p.81-82, the background information on p.82-83, the discussion about discharge on p.83, and the stream concepts discussion on p.87-88 . It also may be useful to look at some of the links to stream information (related to deltas, discharge, gradient, and braided streams) in the week 13 lab notes. I will pick two of the following to ask you on this quiz

1. Explain what discharge is.
   What causes the discharge in a stream to change over time?
   
   
2. What is the mathematical equation for discharge (be sure to explain what each variable is)?
   How does a stream's velocity change with increasing discharge?
   How does a stream's channel change with increasing discharge?
   
   
3. Explain what stream gradient is.
   How does a stream's velocity change with increasing gradient?
   What are high gradient stream channels like?
   What are low gradient stream channels like?
   
   
4. When a stream's velocity increases, what happens with sediment (clay, sand, gravel, pebbles)?
   When a stream slows down, what happens with sediment?
   
   
5. What is a delta – how does it form -- what is it made of ?